68337538 has 4 divisors (see below), whose sum is σ = 102506310. Its totient is φ = 34168768.

The previous prime is 68337523. The next prime is 68337539. The reversal of 68337538 is 83573386.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39853969 + 28483569 = 6313^2 + 5337^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68337494 and 68337503.

It is not an unprimeable number, because it can be changed into a prime (68337539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17084383 + ... + 17084386.

Almost surely, 2^68337538 is an apocalyptic number.

68337538 is a deficient number, since it is larger than the sum of its proper divisors (34168772).

68337538 is a wasteful number, since it uses less digits than its factorization.

68337538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34168771.

The product of its digits is 362880, while the sum is 43.

The square root of 68337538 is about 8266.6521639658. The cubic root of 68337538 is about 408.8397456834.

The spelling of 68337538 in words is "sixty-eight million, three hundred thirty-seven thousand, five hundred thirty-eight".